Tokyo, Japan

Kunio Itoh

This inventor holds 14 USPTO granted patents. Top assignees: Pentel Kabushiki Kaisha, Pentel Kabushiki Kaisha (Pentel Co., Ltd.), Hoechst Japan Kabushiki Kaisha. Active years: 1979-1991.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kunio Itoh. Retrieved from https://idiyas.com/inventor/kunio-itoh-a7rk3obw

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile


% Patents Active = 100.0

Average Co-Inventor Count = 1.1

ph-index = 11

Forward Citations = 476(Granted Patents)


Location History:

  • Tokyo, JP (1979 - 1988)
  • Funabashi, JP (1990 - 1991)

Company Filing History:


Years Active: 1979-1991

Loading Chart...
14 patents (USPTO):Explore Patents

Title: The Innovative Contributions of Kunio Itoh

Introduction

Kunio Itoh is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of writing instruments, holding a total of 14 patents. His work has influenced the design and functionality of everyday items, particularly in the realm of pens.

Latest Patents

Among his latest patents are innovations such as a pen cap and a ballpoint pen. These inventions showcase his ability to enhance the usability and design of common writing tools, making them more efficient and user-friendly.

Career Highlights

Kunio Itoh has had a notable career, working with Pentel Kabushiki Kaisha, also known as Pentel Co., Ltd. His tenure at this company has allowed him to develop and refine his ideas, leading to the creation of several patented products that have become staples in the writing instrument market.

Collaborations

Throughout his career, Itoh has collaborated with talented individuals such as Shigeo Oka and Kimio Watabe. These partnerships have fostered a creative environment that has contributed to the success of his inventions.

Conclusion

Kunio Itoh's innovative spirit and dedication to improving writing instruments have left a lasting impact on the industry. His numerous patents reflect his commitment to enhancing everyday products, making him a noteworthy figure in the world of invention.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
Loading…